Home / 99,648,045.45-149,472,068.18-90,719,836.65

Finding the Fourth Proportional to 99,648,045.45, 149,472,068.18 and 90,719,836.65

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Solution

The fourth proportional to 99,648,045.45, 149,472,068.18 and 90,719,836.65 is: 136,079,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,648,045.45 : 149,472,068.18 = 90,719,836.65 : x
  2. Step 2: Convert to fraction form
    99,648,045.45/149,472,068.18 = 90,719,836.65/x
  3. Step 3: Cross multiply
    99,648,045.45x = 149,472,068.18 × 90,719,836.65
  4. Step 4: Simplify right side
    99,648,045.45x = 13,560,081,608,573,666
  5. Step 5: Solve for x
    x = 13,560,081,608,573,666/99,648,045.45
  6. Step 6: Final answer
    x = 136,079,754.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.